Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phap vat voi snippets" » "phap vat code snippets", "phap luat voi snippets", "phap phat voi snippets", "phap viet voi snippets", "phap sat voi snippets", "phap vat doi snippets", "phap vat moi snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("phap vat voi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap vat voi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phap vat voi snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap vat voi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.